The Good: Problem free, good engagement. Did I mention problem free?
The Bad: Not the lightest hubs out there.Overall Review: I was told when I bought my Hadley/823 wheelset 5 yrs ago that they would last. I have replaced the rear bearings once and that's it as far as major maintenance. I did note the front hub can develop slop, but is easily dealt with tightening the bearing preload bolts. I have done this maybe 4 times in 5 yrs. Besides these two points, I have actually done no maintenance at all on the hubs. (bad bike rider, bad!) Probably the best general DH setup around and maybe have a Hope/Flow setup for race-day if you want.